(Wholly Owned Subsidiary of Pretec Group AS)

Visakhapatnam | India

Our specialities

Rock support – combination bolts with long service life

PC-Bolt R27/12, Rock support.

PC-Bolt R27/12, Rock support.
We produce and offer to the market rock anchor bolts with particularly long service life using PC-CoatTM corrosion protection (hot dip galvanizing, zinc manganese phosphating) for accessories and fusion bonded epoxy(FBE) powder coating for bolt. In order to fully control product quality to very high standards, manufacturing is completely done in our own premises, both mechanical production as well as all steps of corrosion protection as per IS/Indian Standards.

We are producing two types of combination bolts, NC-Bolt and PC-BoltTM. Combination bolts are effective for immediate work protection at the face after torque tensioning, and when later fully grouted, can be classified as permanent support. Workers can install rock bolts in the face area while grouting of the bolts takes place at a convenient time and distance behind the face (typically about 50m). Combination bolts contribute to efficient tunnel advance and when needed, we also offer self-drilling anchors (SDA), either HDG- or PC-CoatTM protected.

Presentation of combination bolts for download: PowerPoint or PDF.

For further information, please contact our sales team:
Erik A. Karlsen,, +47 977 13 810 (UTC +1)
Even A. Karlsen,, +47 908 45 246 (UTC +1)
Suresh Kumar. K,, +91 9866126675 (UTC+05:30)

Other areas

About Pretec Group

The group companies are manufacturing and supplying products for rock support and water & frost proofing of tunnels, slope stabilization, products for the precast industry, like cast in sleeves, lifting systems, sandwich/connections, welding plates, anchor channels, release agents etc. We also have a program for steel builders and mechanical workshops including tie rods, tension rods, foundation bolts, structural bolts, expansion bolts, hollow bolts, dowels, etc. Our network of dealers offers full on-site service to the general building industry.

Where we are

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